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Thread: geometry triangle's angles

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  1. #1

    geometry triangle's angles

    In the figure below what is the value of given that

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    (A)

    (B)

    (C)

    (D)

    Thanks

  2. #2
    The sum of angles in a triangle is always

    So, (1)

    (2)

    Solving the simultaneous equations (1), (2)



    Therefore the correct answer is (D).

  3. #3
    thanks for your response!

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